Carbureter valve and governor.



H. W. PALK & W. K. ANDREW. CARBURETIRv VALVE AND GOVERNOR.

, APPLIOATION FILED o.cT.27. 1911. 1,094,986.

Patented Apr. 28, 1914.

" STATES PATENT oFFIoE'.

HERMAN W.` FALK AND WILLIAM K. ANDREW, OF MILWAUKEE, WISCONSIN.

CARBURETER VALVE AND GOVERNOR.

Specification of Letters Patent.

Application filed October 27, 1911. Serial No. 657,020.

To all whom t may concern:

Be it kno'wn that we, HERMAN W. FALK and WILLIAM K. ANDREW, citizens of the United States, residing at Milwaukee, in the count-y of Milwaukee andv State of Wisconsin, have inventeda certain new and useful Improvement in Carbureter Valves and Governors, of which the following isa specification.

Our invention relates to improvements inV I anced puppet valve .A3 rigidly carried on the reciprocatingvalve stem Ait and working` in opposition to the perforations A5 in the top and bottom of the valve drum A6. It will be seen that as the valve stem A4 descends, the puppet valve A3 will tend to close the perforations A5 and cut down the supply of the mixture.

The governor shaft B is rotatably mounted in the bearing sleeve Bland provided at' its lower end with the pinion B2, which driven by any suitable means not shown from the crank shaft of the engine. The

shaft B` is provided aty its upper end with the reduced section lB2 upon which is slid ably mounted the sleeve B3. The disk B4 is 'rigidly mounted on the shaft B and provided' with the upstanding lugs B5 in which are pivotally mounted the bell crank levers B, having each at one end the jaw B7 engaging the pins B8 von the sleeve B32 and at the other end the counter-balance weights B". The weights B9 are provided each with the crossshaped recesses B1 having in their bottoms conical bearing surfaces B11.

The vertically disposed yokes C are provided with the cylindrical lugs C1 in which are adjustably mounted the conical pointed screws C2 in engagement with the bearing surfaces B1". The springs C3 connect the opposed ends of the'yokes C. The cylindrical housing D is mounted upon the flange lD2 which projects outwardly from the sleeve B1.4

The diametrically opposed perforations D3 in. the housing D are 1n opposition to the them to adjust the tension on .the springs 'C3 by turning the screws C2. The lug D4 proJ'ects upwardly from the housing D and carries the rocker arm C5 pivotally mounted at one end of the lower end of the valve stem 'A4 and at the other end of the cap D on the top of the sleeve B3. The slots X X1 contain in slidable and rotatable contact therewith the pins Y Y1 mounted respectively in the heads Z Z1 on the rods A4 B2 to permit a relativemovement of the parts when the lever C5 rotates.

L It will be Yevident that while we have `shown in` our drawingr an operative device,

s till many changes might be made in the size, shape and arrangement of parts without departing materially from the spirit of our invention, and we wish, therefore, that our drawingbe regarded as in a sense diagrammatic. Y

- The use and operation of our invention is as follows: While the engine is in operation,

`it draws the combustible mixture from the carbureter through the controlling valve and exhaust manifold into' the cylinder. The speed of the engine or the power developed by it is controlled by the amount of combustible mixture drawn past the controlling valve from the carbureter. Then the valve is' wide open, the engine delivers maximum power or speed, and as it closes the speed or power diminishes. The governor is rotated in response to the crank shaft by any suit V'ableconnection which is not here indicated, and as the speed rises above a certain pref determinedpoint the centrifugal force act'- `ing onthe counter-balance weights on the bell crank levers throws them outwardly against the tensionof the springs, raising the sliding sleeve and closing down the valve. As the speed diminshesthe springs draw the counterbalance weights in, loweringthe sleeve and raising or opening the valve. The speed at which the engine will run depends upon the tension in the governor springs and this tension may be varied by rotating the adj'usting conical pointed screws to carry the yokes farther'away o'r allow them to ap-. preach more closely to the counter-balance weights. It will be .observed that the connecting yokes are supported each at one central point and that the springs balance each other upon the two ends of the yokes.

. 'llmrefore a single adjustment of one of thescrews :night under some clrcumst-ancesbe Patented Apr.2s,1914.

v screws C2 and a tool ma-y be inserted through sufficient to adjust the tension on the springs and could not by any possibility throwv the governor out of adjustment or put any torsion or strain on the bearings or any parts of them. Of, course, for considerable variations of adjustment it may be necessary to-change the position of both of the screws. The holes through the governor housing are provided in order that a tool may be readily employed to make this adjustment without taking down the governor.

It will be observed that the overnor is veryl simple and is entirely sel eontained, that all the rotating parts are completely Vcovered up and that'there is no opportunity for any parts to be interfered with or to get outof order.. 'The balanced valve in the carbureter permits of the use of a very light and sensitive governor in view of the fact that under all circumstances the pressure of the gas on either side of the valve is the same and therefore the only loadthat must be carried-by the governor is the friction load, and the work done by the governor will be the same -no matter what the position of the valve. In other words, therefore, we provide a carbureter or governing valve in which the valve is -at all positions and under all conditions quite independent in its action of conditions prevailing inthe valve chamber. That is to say, changes in velocity or pressure of the combustible gases do not affeet in any way the operation of the valve, andV binding or locking owing to any such changes cannot take place.

We claim:4 f A 1. A governor having centrifugally separated balanced weights, yokes on the opposed sides of each of said weights, tension springs interposedbetween the opposed ends of each of said yokes, and means for varying the distance between each of said weights and its yoke, said means comprising a conical pointed screw centrally dis osed in said yoke'and aconical b earn sur ace in said weight ,in opposition to said screw, said ,yokes being movablev relative to `the overnor weights about the pointed ends of t e screws.

2. 'A governor having centrifugally separated balanced' weights, yokes on the opposed sides ofeah of said weights, tensionsprings interposed between the opposed ends of each of sald yokes, means `for varying the distance between each of said weights and its yoke, said means comprising a conical pointed screw centrally disposed in said yoke a conical bearing surface in said weight in opposition to said screw and a perforate housing for said governor, said peroration being in opposition to said screw,

.the distance between each of said weights and its yoke, said meanscomprising a conical" pointed screw centrally disposed in said yoke, and engaging the outer side of the weight, said yokes being movable relative to the governor weights about the pointed ends of the screws.

4. A overnor having centrifugally separated ba ancedweights, slotted on their outer opposed sides, yokes located within slots and in engagement with the weights, and tension springs interposed between the opposed ends of each of said yokes and means carried by said yokes located within said slots and engaging said weights for varying the distance between them, said yokes being movable relative to the overnor weights about a single point as a fu crum.

5. A governor having centrifugally separated balanced weights, slotted on their outell opposed sides, yokes located within slots and in engagement with the weights, and tension springs interposed between the opposed ends of each of said yokes and means carried by said yokes located within said slots and engaging said weights for varying the distance between them, said means comprising a conically pointed screw centrally disposed within said yoke and in engagement with the weights,- said yokes being movable relative to the governor weights about the pointed ends of the screws.

HERMAN W. FALK. WILLIAM K. ANDREW.

Witnesses:

E. A. WINsTED, C. F. HARMON. 

